Cov khoom siv raw ntawm lithium roj teeb feem ntau suav nrog cov khoom siv hluav taws xob zoo, cov khoom tsis zoo electrode, electrolyte, thiab cov khoom sib cais. Kev xaiv thiab kev faib ua feem ntawm cov ntaub ntawv no cuam tshuam ncaj qha rau kev ua haujlwm thiab kev nyab xeeb ntawm lithium roj teeb.
1. Cov Khoom Siv Cathode: Cov khoom siv electrode zoo yog ib qho tseem ceeb tshaj plaws ntawm cov roj teeb lithium, txiav txim siab lub roj teeb lub zog ceev thiab lub zog hluav taws xob platform. Cov khoom siv cathode tam sim no nyob rau hauv kev ua lag luam suav nrog lithium cobalt oxide (LCO), lithium manganese oxide (LMO), lithium hlau phosphate (LFP), thiab cov ntaub ntawv ternary (xws li lithium nickel cobalt manganese oxide (NCM) thiab lithium nickel cobalt aluminium oxide (NCA).
Txhua yam ntawm cov ntaub ntawv no muaj nws tus yam ntxwv tshwj xeeb. Piv txwv li, lithium cobalt oxide muaj lub peev xwm tshwj xeeb thiab kev ua haujlwm siab, thaum lithium hlau phosphate muaj kev nyab xeeb thiab lub neej ntev.
2. Cov khoom siv Anode: Graphite lossis lwm cov pa roj carbon -cov ntaub ntawv feem ntau yog siv los ua cov khoom tsis zoo electrode. Graphite muaj zoo heev lithium intercalation zog, zoo conductivity, thiab tus nqi qis, ua rau nws lug siv nyob rau hauv lithium roj teeb.
Nyob rau hauv xyoo tas los no, silicon- cov ntaub ntawv raws li tau nyiam vim lawv lub peev xwm theoretical siab, tab sis hauv kev siv tswv yim, lawv tseem ntsib teeb meem xws li ntim ntim thiab kev caij tsheb kauj vab.
3. Electrolyte: Cov electrolyte yog qhov nruab nrab rau lithium ion thauj hauv cov roj teeb lithium, thiab nws qhov kev ua tau zoo cuam tshuam rau lub roj teeb lub peev xwm, kev tiv thaiv sab hauv, thiab kev nyab xeeb. Feem ntau siv electrolytes muaj xws li kua electrolytes uas muaj cov organic solvents thiab lithium ntsev, nrog rau cov khoom electrolytes.
4. Diaphragm: Lub diaphragm yog ib qho tseem ceeb ntawm cov roj teeb lithium. Nws zaum ntawm qhov zoo thiab tsis zoo electrodes, cais lawv thiab tiv thaiv luv luv circuits. Tsis tas li ntawd, lub diaphragm's microporous qauv tso cai rau lithium ions hla kev ywj pheej, ua kom lub roj teeb them nqi thiab kev ua haujlwm tawm.
